From owner-freebsd-bugs Thu Mar 19 23:42:22 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA14280 for freebsd-bugs-outgoing; Thu, 19 Mar 1998 23:42:22 -0800 (PST) (envelope-from owner-freebsd-bugs@FreeBSD.ORG) Received: from implode.root.com (implode.root.com [198.145.90.17]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA14275 for ; Thu, 19 Mar 1998 23:42:20 -0800 (PST) (envelope-from root@implode.root.com) Received: from implode.root.com (localhost [127.0.0.1]) by implode.root.com (8.8.5/8.8.5) with ESMTP id XAA16035; Thu, 19 Mar 1998 23:37:09 -0800 (PST) Message-Id: <199803200737.XAA16035@implode.root.com> To: Bill Fenner cc: freebsd-bugs@hub.freebsd.org Subject: Re: kern/6059: Packets from 1.1.1.1 can crash 2.2 server In-reply-to: Your message of "Thu, 19 Mar 1998 23:20:03 PST." <199803200720.XAA11679@hub.freebsd.org> From: David Greenman Reply-To: dg@root.com Date: Thu, 19 Mar 1998 23:37:09 -0800 Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org >The following reply was made to PR kern/6059; it has been noted by GNATS. > >From: Bill Fenner >To: FreeBSD-gnats-submit@freebsd.org >Cc: toasty@dragondata.com >Subject: Re: kern/6059: Packets from 1.1.1.1 can crash 2.2 server >Date: Thu, 19 Mar 1998 23:17:13 PST > > Ok, I let the SYN attack run for 6 hours; at 30 packets per second, > that was somewhere in the neighborhood of 648,000 SYN packets. No > messages, no crash. The only indication that anything was going on was > that my firewall administrator yelled at me =) > > Maybe if we can figure out how you produced the arpresolve error there'll > be some way to replicate this. It looks to me like the machine in question ran out of mbuf clusters and paniced due to one of the bugs related to that. I think all will be well if NMBCLUSTERS is increased. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message